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Finding the Fourth Proportional to 2,699.57, 3,724.97 and 1,705.38

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Solution

The fourth proportional to 2,699.57, 3,724.97 and 1,705.38 is: 2,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.57 : 3,724.97 = 1,705.38 : x
  2. Step 2: Convert to fraction form
    2,699.57/3,724.97 = 1,705.38/x
  3. Step 3: Cross multiply
    2,699.57x = 3,724.97 × 1,705.38
  4. Step 4: Simplify right side
    2,699.57x = 6,352,480.81
  5. Step 5: Solve for x
    x = 6,352,480.81/2,699.57
  6. Step 6: Final answer
    x = 2,353.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.